signal callback delegate or function to connect
void callback(gtk.spin_button.SpinButton spinButton)
spinButton the instance the signal is connected to (optional)
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to ValueChanged signal.
The ::value-changed signal is emitted when the value represented by spinbutton changes. Also see the #GtkSpinButton::output signal.